<!doctype html>
<html>
	<head>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-widht,initial-scale=1,mximum-scale=1,user-scalable=no">
		<title></title>
		<link rel="stylesheet" href="css/bootstrap.min.css">
	</head>
	<body>
		<button class="btn btn-lg btn-success">
			hello world
		</button>
	</body>
</html>